Icom M423GB

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Please note that Telco Antennas will be closed for the Christmas Holiday period from 11am on Friday the 20th of December through till Monday the 6th of January, opening again from 8:30am onwards.

The last day Orders will be despatched will be Thursday the 19th of December.

25 Watt VHF Marine Mobile Transceiver with Class D DSC

(IC-M423GB)

Intuitive User Interface and White Backlit LCD and Keypad

Incorporating Icom's common Marine Family User Interface designed for simple, intuitive operation. A rotary selector and directional keypad provide quick and easy access to the intended functions. The high contrast white backlit LCD and laser-cut keypad match well with modern boat designs.

Active Noise Cancelling

The built-in active noise cancelling provides superb performance. It reduces background noise up to 90% in the received signal and 30% in the transmits signal.

10 W Loud Audio, Public Address and Foghorn

The IC-M423G has a built-in 10 W amplifier that increases the audio output to an external PA speaker. The public address function allows you to make an announcement from the microphone like a loud speaker, the foghorn can also be emitted from the external PA speaker.

Built-in Class D DSC

The built-in DSC watch function monitors Ch. 70 (DSC channel) activity, even while you are receiving another channel. DSC functions include: distress, individual, group, all ships, urgency, safety, position request/report, polling request and DSC test calls.

Built-in GPS Receiver

GPS antenna Supplied

The built-in GPS receiver shows your current position, date/time and can be used for DSC calls. The GPS data source is selectable from internal and external GPS.

Optional White Backlit COMMANDMIC™ HM-195GB/GW

The optional white backlit COMMANDMIC makes it convenient for using the IC-M423G from a separate cabin or tower. All functions of the IC-M423G can be controlled from the COMMANDMIC and can be used as an intercom with the IC-M423G.

AIS Target Call with MA-510TR

When connected to the optional MA-510TR >Class B AIS transponder, the AIS target call function allows you to make an individual DSC call without having to manually input an MMSI number.

Other Features

Simple remote control speaker-microphone, HM-205B/SW
NMEA 0183 connectivity
MarineCommander™ compatible
AquaQuake™ draining function
IPX7 waterproof protection (1m depth for 30 minutes)
Dual/tri-watch function for monitoring Ch.16 and/or call channel
Priority and normal scan
Black and super white versions available

General

Frequency range		TX	156.000–161.450 MHz
		RX	156.000–163.425 MHz
		CH70	156.525 MHz
Usable channels			INT, USA* channels * Available depending on version
Type of emission			16K0G3E (FM), 16K0G2B (DSC)
Power supply requirement			13.8 V DC nominal (10.8-15.6 V DC)
Current drain (at 12.0V DC)	TX 25 W output		5.5 A
	RX AF max.	External SP	5.0 A (RX SP ON)
	RX AF max.	Internal SP	1.5 A
Operating temperature range			−20°C to +60°C
Antenna impedance			50 Ω (SO-239)
Dimensions (W×H×D) (projections not included)			180×82×119.9 mm
Weight (approx.)			1.2 kg
NMEA in/out formats			RMC, GGA, GNS, GLL, DSC, DSE

Transmitter

Output power (at 12.0 V DC)			25 W, 1 W
Max. frequency deviation			±5.0 kHz
Frequency stability			Less than ±1.5 kHz
Spurious emissions			Less than 0.25 μW

Receiver

Sensitivity (20 dB SINAD)			−5 dBμ emf typ.
Squelch sensitivity			Less than −2 dBμ emf
Adjacent channel selectivity			More than 70 dB
Spurious response			More than 70 dB
Intermodulation			More than 68 dB
Audio output power (at 10% distortion, 4 Ω load)			More than 10 W (Ext. speaker)